The Chillcard
NG range of NDIR gas sensors from Edinburgh Sensors has been
extended to include two new gases; namely CO (carbon monoxide)
and CO2 (carbon dioxide).

Their standard sensors for these gases use a miniature lamp with
a tungsten filament as the source of infrared light. However,
in applications such as endothermic gas annealing furnaces and
gasification where high levels of H2 (hydrogen) are present,
the lamp can have a reduced lifetime. It is possible to repair
the sensor but this means the gas sensor cannot be used until
the lamp is changed and the sensor recalibrated. The new Chillcard
sensors are built with a micro-machined thermal infrared emitter
which has a longer lifetime in these challenging environments,
giving less downtime and reduced long-term cost of ownership.